CN106004748A - Structure for mounting hook bracket to bumper reinforce - Google Patents
Structure for mounting hook bracket to bumper reinforce Download PDFInfo
- Publication number
- CN106004748A CN106004748A CN201610011599.8A CN201610011599A CN106004748A CN 106004748 A CN106004748 A CN 106004748A CN 201610011599 A CN201610011599 A CN 201610011599A CN 106004748 A CN106004748 A CN 106004748A
- Authority
- CN
- China
- Prior art keywords
- hook bracket
- bumper reinforcement
- flank
- bracket
- hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/04—Hook or hook-and-hasp couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/56—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to a structure for mounting a hook bracket formed of an aluminum alloy extrusion to a bumper reinforce having a hollow cross-section, and further reduces the weight of the hook bracket and the weight of the mount structure without deteriorating towing performance. The hook bracket (1) has a cut (3) that is formed in an extrusion cross-section (a cross-section perpendicular to the direction of extrusion) and extended from the rear end of a shaft portion (2) into the hollow in the bumper reinforce (5). The shaft portion (2) of the hook bracket (1) is penetrated through a hole formed in front and rear walls (6, 7) of the bumper reinforce (5) and fillet-welded to the front and rear walls (6, 7). The shaft portion (2) is not fillet-welded to the rear wall (7) at a position where the cut (3) is formed.
Description
Technical field
The present invention relates to the installation structure of bumper reinforcement and hook bracket.
Background technology
The hook being installed on automobile is mainly used in other vehicles of traction, is fixed (bolt is tight), court when being equipped on boats and ships
Forwards or front obliquely downward applies bigger tension load.Propose a kind of installation structure, wherein, when by hollow profile
When aluminum alloy extrusion is used as bumper reinforcement, the high rigidity of hollow profile is utilized to make hook bracket be applied in bumper and strengthen
The antetheca of part and the hole of formation on rear wall, be installed in described antetheca and rear wall by welding.
In patent documentation 1, make to be made up of aluminum alloy extrusion section bar and left and right with rear end has near the front end in axle portion
The hook bracket having bead is applied on the antetheca of bumper reinforcement and rear wall the hole formed, be arranged on by fillet welding described before
Wall and rear wall.In this installation structure, make the bead near the front end of hook bracket abut with the back side of described antetheca, make rear end
Bead abut with the back side of described rear wall, it is achieved the raising of hauling ability.
In patent documentation 2, make to be made up of and have near the front end in axle portion rib prominent upward aluminum alloy extrusion
The hook bracket in portion is applied on the antetheca of bumper reinforcement and rear wall the hole formed, be arranged on by fillet welding described antetheca with
Rear wall.The direction of extrusion of hook bracket is parallel with the long side direction of bumper reinforcement.In this installation structure, by by described
The periphery of flank is welded on antetheca, especially achieve bolt tight time the raising of hauling ability.
Citation
Patent documentation
Patent documentation 1: No. 4229388 publications of Japanese Patent Publication No. (Fig. 1,2)
Patent documentation 2: No. 5374431 publications of Japanese Patent Publication No.
In the installation structure described in patent documentation 1,2, bumper reinforcement and hook bracket are by aluminium alloy extruded
Part is constituted, and hook bracket is secured in antetheca and the rear wall of the high bumper reinforcement of rigidity by welding.Therefore, installation structure
Realize lightness, and there is higher hauling ability.
On the other hand, as the ring of lightness of vehicle body, it is desirable to hook bracket and installation structure the lightest
Type.
Summary of the invention
Therefore, it is an object of the invention to, it is not necessary to reduce hauling ability and can be realized as hook bracket and installation structure
Further lightness.
For solving the means of problem
In the bumper reinforcement of the present invention with the installation structure of hook bracket, described bracket is by aluminum alloy extrusion section bar
Constitute, have in extruding section (section vertical with the direction of extrusion) and arrive described bumper reinforcement from the rear end in axle portion
Breach within hollow.The axle portion of described hook bracket is applied in the antetheca of the bumper reinforcement of hollow profile and is formed on rear wall
Hole, be installed on described antetheca and rear wall by welding.Shape as breach, it is considered to U-shaped, V-shaped, semicircle etc. are each
Plant shape.
Preferably, described hook bracket has the flank projected upwards from described axle portion in described extruding section, described
Flank contacts from the antetheca of front side with described bumper reinforcement.In this case, it is preferable that at described extruding section
In, between the front side and described axle portion of described flank, it is formed with fillet portion, and described fillet portion convex curve.
It should be noted that in the present invention, " front " represents impingement area side, and " afterwards " represents body side.
Invention effect
Owing to the hook bracket of the present invention has the hollow of the rear end arrival bumper reinforcement from axle portion in extruding section
Internal breach, therefore, although relevant with the shape of breach and the degree of depth, but with not there is the conventional material phase of described breach
Ratio, it is possible to realize considerable degree of lightness.
In conventional bracket, internal thread hole is formed to rear end from the front end in axle portion.But, at conventional hook bracket
In, hook is not threaded into the rear end to this bracket, is the most only to be threaded into about 30mm from front end, thus obtain required
The hauling ability wanted.
On the other hand, the hook bracket of the present invention is configured to, with the internal thread hole only shape of the external thread spiro fastening of hook on complete cycle
The front end in Cheng Cong axle portion is in the range of the bottom of breach, compared with conventional hook bracket, and the effective length contracting of internal thread hole
Short.But, in conventional hook bracket, as it has been described above, be the most only that hook is threaded into about 30mm towards internal thread hole, thus obtain
To required hauling ability.Therefore, in the hook bracket of the present invention, even if the effective length of internal thread hole shortens and breach
The corresponding length of the degree of depth, but thus make the situation of hauling ability reduction compared with the past the most not exist.
In the installation constitution employing conventional hook bracket, it is possible to by the rear wall of bumper reinforcement with this bracket whole
Fillet welding is carried out on week.
On the other hand, in the installation constitution of hook bracket employing the present invention, it is being formed with the position (hook of described breach
The right position of bracket), it is impossible to rear wall and this bracket to bumper reinforcement carry out fillet welding.But, conventional employing
In the installation constitution of hook bracket, the welding position of the rear wall of bumper reinforcement and the left and right of this bracket is as described later to traction
The help of performance is little.Therefore, in the installation constitution of hook bracket employing the present invention, even if forming position jaggy
Not carrying out fillet welding, the reduction of the hauling ability thus brought is the most less.
Accompanying drawing explanation
Fig. 1 is the figure of the hook bracket of the present invention, and (a) is top view, and (b) is front view, and (c) is side view.
Fig. 2 is the sectional view illustrating the hook bracket shown in Fig. 1 with the installation structure of bumper reinforcement.
Fig. 3 is the side view of another example of the hook bracket illustrating the present invention.
Fig. 4 is the conventional hook bracket installation structure with bumper reinforcement of the object as FEM analysis.
Fig. 5 is the axonometric chart of the result illustrating that FEM analyzes.
Description of reference numerals
1,1A～1D hook bracket
2 axle portions
3 breach
4 internal thread holes
5 bumper reinforcements
6 antethecas
7 rear walls
8 upper walls
9 lower walls
Flank in 11
12,13 protuberance
14～17 fillet welding portions
21,22,24～26 flank
23 fillet portions
Detailed description of the invention
Hereinafter, with reference to Fig. 1～5, the bumper reinforcement of the present invention is illustrated with the installation structure of hook bracket.
Hook bracket 1 shown in Fig. 1 is made up of aluminum alloy extrusion section bar, and the direction of extrusion of aluminum alloy extrusion is in Fig. 1 (c)
Vertical with paper.Hook bracket 1 is only made up of axle portion 2, and profile during vertical view is rectangle, and the profile of main apparent time is substantially square
Shape, in extruding section (section vertical with the direction of extrusion), from the rear end (right-hand member Fig. 1 (c)) in axle portion 2 with prescribed depth
It is formed with the breach 3 of U-shaped.Along the long side direction in axle portion 2, it is formed with internal thread hole 4 towards rear end from front end.This female thread
The effective length in hole 4 length of the external thread spiro fastening of hook (on the complete cycle with) is the end arriving breach 3 near the front end in axle portion 2
The length of portion 3a.
In the installation structure shown in Fig. 2, bumper reinforcement 5 is made up of aluminum alloy extrusion, its section shape by
Constitute the antetheca 6 of rectangular profile, rear wall 7, upper wall 8 and lower wall 9, middle flank 11 is constituted.Antetheca 6 and rear wall 7 towards relative to
Vehicle body fore-and-aft direction generally perpendicular direction.Casing 5a in the downside of bumper reinforcement 5 is (by antetheca 6, rear wall 7, middle flank
11 and the position that surrounds of lower wall 9) antetheca 6 offer hole with rear wall 7, this is run through along vehicle body fore-and-aft direction in the axle portion 2 of hook bracket 1
Hole.The leading section in the axle portion 2 of hook bracket 1 is from antetheca 6 prominent (protuberance 12), and rearward end is from rear wall 7 prominent (protuberance 13).Axle
Protuberance 12 and the antetheca 6 (periphery in the hole that axle portion 2 is run through) of the front side in portion 2 carries out fillet welding (only in diagram on complete cycle
Under weld part 14,15).On the other hand, the protuberance 13 of rear side and rear wall 7 (periphery in the hole that axle portion 2 is run through) are upper
Under contact site carry out fillet welding (illustrating upper and lower weld part 16,17), the contact site in left and right does not carry out fillet welding.Need explanation
, for the protuberance 12 fillet welding with antetheca 6, on complete cycle, preferably carry out angle to obtain longer weld length
Weldering, but this is not necessarily, it is also possible to as such as patent documentation 2 described in, employing complete cycle a part (especially
The contact site of left and right) omit other welding forms such as welding.
Figure 3 illustrates other the hook bracket (being constituted by aluminium extruded section) of the present invention.
Hook bracket 1A shown in Fig. 3 (a) is have in the front end in axle portion 2 and project upwards with the difference of hook bracket 1
Flank 21.In the case of hook bracket 1A is installed on bumper reinforcement 5, flank 21 is from front side and bumper reinforcement
The antetheca 6 of 5 contacts, and flank 21 and antetheca 6 are carried out fillet welding.Preferably this fillet welding is the complete cycle welding including flank 21.Due to hook
Bracket 1A has flank 21, and therefore load during traction passes efficiently via middle flank 11, the upper wall 8 of bumper reinforcement 5
Being handed to rear wall 7, bumper reinforcement 5 is strengthened with the installation structure of hook bracket 1A.
Hook bracket 1B shown in Fig. 3 (b) is have upwards near the front end in axle portion 2 with the difference of hook bracket 1
Prominent flank 22, and it is formed with fillet 23 between the front side and axle portion 2 of flank 22.Hook bracket 1B is being installed on guarantor
In the case of the thick stick reinforcement 5 of danger, flank 22 contacts with the antetheca 6 of bumper reinforcement 5 from front side, to flank 22 and antetheca 6
Carry out fillet welding.Preferably this fillet welding is the complete cycle welding of the surrounding including flank 22.Flank 22 is functionally with hook bracket 1A's
Flank 21 is identical, but is formed with the fillet portion 23 of surface convex curve between front side and axle portion 2.This fillet portion 23 has logical
Cross bolt tight time etc. load to prevent from producing between flank 22 and axle portion 2 effect of be full of cracks.
Hook bracket 1C shown in Fig. 3 (c) is with the difference of hook bracket 1, in the front end in axle portion 2 except projecting upwards
Flank 21 outside also there is downward projection of flank 24.In the case of hook bracket 1C is installed on bumper reinforcement 5, rib
Portion 24 similarly contacts with the antetheca 6 of bumper reinforcement 5 from front side with flank 21, and flank 24 and antetheca 6 are carried out fillet welding.
Preferably this fillet welding is the complete cycle welding of the surrounding including flank 24,25.The function of flank 24 is identical with flank 21.
Hook bracket 1D shown in Fig. 3 (d) is have in the rear end in axle portion 2 and highlight up and down with the difference of hook bracket 1
Flank 25,26.In the case of hook bracket 1D is installed on bumper reinforcement 5, flank 25,26 is from rear side and bumper
The rear wall 7 of reinforcement 5 contacts, and flank 25,26 (the especially top of flank 25,26) and rear wall 7 are carried out fillet welding.In order to obtain
Longer weld length, it is also possible to the left and right of flank 25,26 and rear wall are carried out fillet welding.
It should be noted that the hook bracket described in Fig. 1～3 may be contained within the straight line portion (insurance of bumper reinforcement
The position that the long side direction of thick stick reinforcement is parallel with vehicle-width direction).But, the hook bracket of the present invention also is able to such as patent documentation
1, be arranged at as shown in 2 bumper reinforcement sloping portion (long side direction of bumper reinforcement from overall width direction towards car
Body rolls oblique position).In this case, the direction of extrusion of hook bracket is also like being set to insurance as shown in patent documentation 1,2
The long side direction of thick stick reinforcement.
As the bumper reinforcement in the installation structure of the present invention and hook bracket, it is possible to use each arbitrarily to form
Aluminum alloy extrusion, especially preferably 6000 are or 7000 aluminum alloy extrusion being.
About breach 3, in addition to U-shaped, further contemplate V-shaped, semicircle etc. variously-shaped.But, squeeze based on aluminium alloy
The extrusion speed (if there is acute angle portion at extruding section, extrusion speed reduces) of casting die and lightness effect are (in semicircle
In, the sectional area of minimizing is little compared with U-shaped) etc. aspect, preferably U-shaped.
(FEM of conventional installation structure analyzes)
In the installation structure employing conventional hook bracket, use FEM (Finite Element Method) point
Analysis, obtains the counteracting force produced by hook bracket when the front end of hook bracket applies the tractive load towards front.
As analysis condition, bumper reinforcement is set to the shape shown in Fig. 4 with the section shape of hook bracket.This bumper
The section shape of reinforcement is identical with the section shape of the bumper reinforcement 5 shown in Fig. 2.The profile of hook bracket is cuboid
Shape (with the presence or absence that the difference is that only breach 3 of the hook bracket 1 shown in Fig. 2), is formed at central part and passes through along the longitudinal direction
Logical internal thread hole.Bumper reinforcement and the welding position of hook bracket are equal in the antetheca side of bumper reinforcement and rear wall side
Employing complete cycle welds.
It addition, as bumper reinforcement and hook bracket, it is assumed that 7000 line aluminium alloy extrusions.Towards front (reference
Arrow a) applies the tractive load of 30kN to the front end of hook bracket, obtains counteracting force produced by hook bracket.Analyze at FEM
In, employ general finite element analysis coding ABAQUS.
Fig. 5 illustrates the result that FEM analyzes.In Figure 5, the surface of hook bracket it is attached to ● mark represents on this hook bracket
Produce certain above heavily stressed position.As it is shown in figure 5, produce on whole of the front side installed for hook of hook bracket
Raw heavily stressed, especially produce heavily stressed in ridge line section.On the other hand, side in the wings, produce heavily stressed position less, especially
It is not observe height at the position, left and right (being the position of the breach 3 forming U-shaped in the hook bracket of the present invention) of hook bracket
The generation of stress.
It should be noted that to the front end of hook bracket, towards oblique front lower place, (the arrow b) with reference to Fig. 4 applies leading of 5kN
In the case of drawing load, at the rear side of hook bracket, produce heavily stressed position the most less, and at the position, left and right of hook bracket
The most do not observe heavily stressed generation.
The hook bracket of the present invention has inside the hollow that the rear end in axle portion arrives bumper reinforcement in extruding section
Breach, thus, it is impossible to the rear wall in the position Yu described bumper reinforcement that are formed with described breach carries out fillet welding.But,
According to described analysis result, the reduction not carrying out the hauling ability that described fillet welding is caused is less.
On the other hand, in extruding section, there is breach, therefore due to the hook bracket of the present invention, although with the shape of breach
And the degree of depth is relevant, but compared with the conventional material without described breach, it is possible to considerably realize lightness.
Claims (3)
1. bumper reinforcement and an installation structure for hook bracket,
This bumper reinforcement has hollow profile,
This hook bracket is made up of aluminum alloy extrusion section bar, the axle portion of this hook bracket be applied in the antetheca of described bumper reinforcement with
The hole formed on rear wall, and it is installed on described antetheca and rear wall by welding,
It is characterized in that,
The long side direction of described bumper reinforcement is the direction of extrusion, and described hook bracket is formed from described axle in extruding section
The rear end in portion arrives the breach within hollow of described bumper reinforcement.
Bumper reinforcement the most according to claim 1 and the installation structure of hook bracket, it is characterised in that
Described hook bracket extruding section in there is the flank projected upwards from described axle portion, described flank from front side with described
The antetheca contact of bumper reinforcement.
Bumper reinforcement the most according to claim 1 and 2 and the installation structure of hook bracket, it is characterised in that
Described hook bracket extruding section in described flank front side and described axle portion between be formed with fillet portion, described in fill out
Corner convex curve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015063822A JP6407778B2 (en) | 2015-03-26 | 2015-03-26 | Bumper reinforcement and hook bracket mounting structure |
| JP2015-063822 | 2015-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106004748A true CN106004748A (en) | 2016-10-12 |
| CN106004748B CN106004748B (en) | 2018-12-21 |
Family
ID=56973879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610011599.8A Active CN106004748B (en) | 2015-03-26 | 2016-01-08 | The installation structure of bumper reinforcement and hook bracket |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9643461B2 (en) |
| JP (1) | JP6407778B2 (en) |
| CN (1) | CN106004748B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021117482A1 (en) | 2021-07-07 | 2023-01-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | secure support structure |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3588160A (en) * | 1968-09-23 | 1971-06-28 | Reiner Ralph | Shiftable bumper |
| RO120022B1 (en) * | 1999-05-26 | 2005-07-29 | Iancu Lungu | Inductor for two-phase commutable reluctance machine, with electronic commutation |
| US6386573B1 (en) * | 2000-12-11 | 2002-05-14 | Paccar Inc. | Plug-in tow device |
| NO20016137D0 (en) * | 2001-12-14 | 2001-12-14 | Norsk Hydro As | Towbar hook system |
| GB2388413B (en) * | 2002-05-11 | 2005-05-18 | Wagon Ind Ltd | Improvements relating to vehicle bumber assemblies and associated towing assemblies |
| JP4475885B2 (en) * | 2003-05-07 | 2010-06-09 | 富士重工業株式会社 | Vehicle roof structure |
| US6902183B2 (en) * | 2003-09-08 | 2005-06-07 | E. Walter Rodgers | Tow hook hitch assembly and method |
| JP4188215B2 (en) * | 2003-11-26 | 2008-11-26 | トヨタ自動車株式会社 | bracket |
| JP4531422B2 (en) * | 2004-03-26 | 2010-08-25 | アイシン精機株式会社 | Bumperin force for vehicles |
| JP4229388B2 (en) | 2004-07-30 | 2009-02-25 | 株式会社神戸製鋼所 | Hook bracket mounting structure |
| US20060071494A1 (en) * | 2004-10-04 | 2006-04-06 | Ganz Alan S | Fender finder with extension and retraction feature |
| WO2008141213A1 (en) * | 2007-05-10 | 2008-11-20 | Netshape Energy Management, Llc | Bumper system providing storage and accessory functions |
| US20080284134A1 (en) * | 2007-05-14 | 2008-11-20 | Dorian David Temple | Tow hitch hook and method of use |
| JP5166077B2 (en) * | 2008-03-07 | 2013-03-21 | カヤバ工業株式会社 | Knuckle bracket |
| JP5337067B2 (en) * | 2010-02-02 | 2013-11-06 | 豊田鉄工株式会社 | Hook support device for towing vehicle |
| JP5374431B2 (en) * | 2010-03-31 | 2013-12-25 | 株式会社神戸製鋼所 | Bumper reinforcement and hook bracket mounting structure |
| US8251414B2 (en) * | 2010-09-22 | 2012-08-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Tow hook cover having tether hook |
| US8590950B2 (en) * | 2011-05-17 | 2013-11-26 | Chrysler Group Llc | Vehicle bumper assembly with a removably coupled tie-down receiver |
| JP6009420B2 (en) * | 2013-08-19 | 2016-10-19 | 株式会社神戸製鋼所 | Bumper reinforcement and manufacturing method thereof |
-
2015
- 2015-03-26 JP JP2015063822A patent/JP6407778B2/en active Active
-
2016
- 2016-01-08 CN CN201610011599.8A patent/CN106004748B/en active Active
- 2016-02-24 US US15/052,233 patent/US9643461B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US9643461B2 (en) | 2017-05-09 |
| CN106004748B (en) | 2018-12-21 |
| US20160280024A1 (en) | 2016-09-29 |
| JP6407778B2 (en) | 2018-10-17 |
| JP2016182868A (en) | 2016-10-20 |
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